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Outlook email send glitch

Brad Richey 0 Reputation points
2026-06-13T00:14:20.8966667+00:00

The intended recipients of my email messages from outlook are not receiving the email messages

Outlook | Web | Outlook.com | Email
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  1. Alice-N 10,280 Reputation points Microsoft External Staff Moderator
    2026-06-13T04:56:32.28+00:00

    Hi, 

    I understand that recipients are not receiving emails sent from your Outlook.com account, and I’m happy to help. Could you confirm: 

    • Whether this happens to all recipients or only certain domains.  
    • Whether you receive any delivery-failed message.  
    • Whether the message includes attachments or a signature.  
    • Whether your Outlook.com account is newly created.  

    Please try the following steps: 

    • Send a brand-new plain-text test email 
      • Sign in at https://outlook.live.com/ and send a new plain-text test email to one recipient only. Do not use an old draft, template, group, or copied recipient list. 
    • Retry without a signature or attachments 
    • Check your Microsoft storage 
      • If your Microsoft cloud storage is full, Outlook.com cannot send or receive email. Exceeding Microsoft storage can stop Outlook.com mail from sending or receiving. 
      • Reference: Microsoft storage quotas - Microsoft Support 
    • Consider whether the account is newly created 
      • If this is a new Outlook.com account, sending may be temporarily limited until the account builds credibility. Newly created Outlook.com accounts can have a temporary low sending quota.  
    • If you receive a delivery-failed message, review the exact error 
      • Open the non-delivery report and check the exact error text. Such as:  
      • invalid email address 
      • recipient mailbox full 
      • recipient server issue 
      • spam filtering or blocked/listed sender 
      • message too large  
    • If the message shows as sent but no delivery-failed message appears 
      • Ask one recipient to add your Outlook.com address to their Safe Senders list and then send a fresh test message. Recipient-side spam filtering can block or divert messages, and adding the sender to Safe Senders may help.  
      • If the recipient address is correct and you receive a non-delivery report, you can also use Sender Support in Outlook.com.  

    Please tell me how it goes. If the problem persists, please don’t hesitate to reply to this thread and I will be happy to help. Have a lovely day!   

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".    

    Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread. 

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  2. AI answer

    2026-06-13T00:14:35.32+00:00

    Use the following checks in Outlook.com and Outlook on the web to determine why recipients are not getting messages:

    1. Confirm messages are actually being sent
    • Check the Sent Items folder to verify the messages appear there.
    • If messages are stuck in Drafts or Outbox (in connected clients), send them again.
    1. Check Junk and rules in Outlook.com
    • In Outlook.com, verify that outgoing messages are not being affected by rules or junk settings:
      • Review Rules to ensure no rule is moving or modifying messages in a way that prevents delivery.
      • Review Junk Email settings and make sure the intended recipients are not blocked.
    1. Ask recipients to check their side
    • Ask recipients to:
      • Check their Junk/Spam folders.
      • Verify they have not blocked the sender address or domain.
      • If a specific recipient never receives messages and no error is shown, ask them to review Sender Support in Outlook.com.
    1. Verify forwarding and connected apps
    • In Outlook.com, check if email forwarding is enabled and ensure it is configured correctly so messages are not redirected unexpectedly.
    • If using third-party mail apps connected to Outlook.com, ensure they support modern authentication and IMAP as required. Misconfigured POP/IMAP connections can interfere with mail flow.
    1. Check for non-delivery reports (NDRs)
    • If any NDRs are received, review the error details. They often indicate whether the issue is with the recipient’s address, mailbox, or a sending restriction.

    If, after these checks, messages still do not reach recipients and no NDR is generated, contact the recipient’s admin or support to investigate filtering or delivery issues on their system.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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